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29 July 2019 | Story Leonie Bolleurs
Dr Martin Clark
Dr Martin Clark, the founder of the MAGIC (Multi-purpose Aerial Geological Image Classification) initiative. MAGIC can obtain geological and structural information that is critical for making informed decisions in exploration and mineral extraction processes.

Mining has historically been described as a boom-and-bust industry, where fluctuations in mineral prices could result in extreme success or bankruptcy. Successful mining companies closely monitor assets/expenditures, risks, and other parameters associated with their business to best ensure their longevity. In most mineral industries, there are a few competitors that dominate the delivery of a mineral resource. As a result, technological development, along with other factors, are critical to ensure that these companies’ business remains viable and protected.

This is according to post-doctoral fellow in the Department of Geology, Dr Martin Clark.

Drone technology: better, faster, safer

He says technological development in mining generally translates to how a company can extract a resource from the ground better, faster, and safer. 

Dr Clark believes the rapid development of drone technology represents a shift in the toolbox that mining companies can employ.

“Drones can collect a great deal of data randomly over vast or small areas within hours, historically accomplished by mapping campaigns which can last months to years. Drones can also collect data in areas which are difficult and dangerous for humans to get to. These include cliff faces or rock walls that are difficult and dangerous to get close to, as well as stretches of land where dense vegetation, inaccessible terrain, and even atmospheric dangers become factors which reduce or modify the scope of exploration work,” he said. 

Expanding application of drones

Dr Clark’s work specifically focuses on expanding the applications for which drones are used. “I assess what and how good the imaging capabilities of drones are, use the imagery to generate 3-D models to drive scientific observation, and yield results which can help companies to extract resources. This initiative is called MAGIC (Multi-purpose Aerial Geological Image Classification),” he said. 



“MAGIC aims to collect geological and structural information that is critical for making informed decisions in exploration and mineral extraction processes,” he added.

Dr Clark is not only the founder of MAGIC; he also drives multiple aspects of the initiative including education, research, and business development. 

In 2013, when he was busy with his doctorate, there was already a spark of interest in using drones to address geological questions. At that time, Dr Clark was working with remotely sensed high-resolution LiDAR imagery to better understand geological structures at the Sudbury Mining Camp in Canada. The interest became a reality in 2018, when he applied this initiative during his post-doctoral fellowship at the UFS.

Now and the future

“At present, there are no direct mining projects underway, but projects are expected to begin in 2020. Drone operation and image-analysis techniques are currently being refined for industry,” he said. 

Besides his work with drones, Dr Clark also work in the fields of structural geology, remote sensing, and geospatial data analysis.  

News Archive

Early diagnosis of hearing loss is important
2017-09-11

  Description: Magteld small Tags: birth defects, hearing loss, Dr Magteld Smith, Department of Otorhinolaryngology

Dr Magteld Smith, lecturer in the
Department of Otorhinolaryngology
at the University of the Free State (UFS)
Photo: Supplied


One of the most common, misunderstood and neglected birth defects in developing countries is hearing loss, which can most severely impair and have a dramatic impact of the quality of life the of the person with hearing loss. 

This is according to Dr Magteld Smith, lecturer in the Department of Otorhinolaryngology at the University of the Free State (UFS). 

“Hearing loss refers to all the different types and levels of hearing loss, from slight to profound hearing loss,” she said. 

Derived from a number of retrospective studies in South Africa, it was found 17 people a day are born with hearing loss. More than 95% of those children are born to hearing parents. This estimate excludes children and adults who lost their hearing after birth. 

According to Dr Smith, hearing loss strikes at the very essence of being human, because it hinders communication with others. To enable people to communicate with those with hearing loss, the university’s Department of South African Sign Language teaches students sign language. This year, the department enrolled 230 students. A number of these students are from the Faculty of Education. These students could from 2017 for the first time choose sign language as a subject.

“Studies have shown that important language skills are learned before the age of three because hearing and learning language are closely tied together. Brain development of the auditory pathways and language cortex is occurring in young children as they respond to auditory and visual language. In families that are part of deaf culture, these parents automatically sign from day one, so the baby is learning visual (sign) language, and the appropriate brain development is occurring.

Beskrywing: Doof readmore Sleutelwoorde: geboorte-afwykings, gehoorverlies, dr Magteld Smith, Departement Otorinolaringologie

About 230 students are enrolled for the subject, South African 
Sign Language, at the UFS. As an assignment some of the students 
were asked to design posters to create deaf awareness among 
others on campus. From the left are: Poleliso Mpahane, 
Masajin Koalepe, Ntshitsa Mosase, and Zoleka Ncamane. 
Photo: Leonie Bolleurs

“However, if a child has an undiagnosed hearing loss and the parents are unaware, the child will not receive the needed language stimulation — and the hoped-for development won’t take place. It is critical to understand that children with hearing loss have their own talents, different levels of intelligence, socioeconomic circumstances and different abilities, just like hearing children. Therefore, one size does not fit all,” Dr Smith said. 

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